Minecart Disappearing

I looked for this issue but it seems to have already been closed. I have a long rail line and I sent a minecart with a chest in it down to the other side. After a few minutes I followed behind it in my own rail cart. But when I reached the end, the minecart with chest was not there. I had both normal rails and powered rails in this line. It was quite far but in other worlds in the past I've had long rail lines without this issue. Did I do something wrong?

 

Edit: When I opened and closed the world, the minecart reappeared. I dont know how to delete this but I don't need help anymore.